Fluid injection apparatus having a syringe presence sensor
First Claim
1. A fluid injection apparatus for use with a syringe, comprising:
- an injector comprising an injector housing defining an opening for a drive piston extendable from the injector housing for imparting motive forces to a syringe plunger disposed within the syringe;
a pressure jacket associated with the injector for securing the syringe during an injection procedure, the pressure jacket having a distal end defining a syringe receiving opening for receiving the syringe and a proximal end associated with the injector housing and generally aligned with the opening; and
a syringe sensor comprising a tapered actuating member having two ends, a flat end and an elongated end, and an electrical switch, whereby the flat end comes into contact with the syringe thereby causing the elongated end to contact the electrical switch and generate a signal when the syringe is inserted into the pressure jacket.
3 Assignments
0 Petitions
Accused Products
Abstract
The fluid injection apparatus is adapted for use with a syringe and includes an injector and a pressure jacket associated with the injector. The injector includes a housing defining an opening for a drive piston extendable from the housing. The pressure jacket secures the syringe during an injection procedure. The pressure jacket has a distal end defining a syringe receiving opening for receiving the syringe, and a proximal end associated with the housing and generally aligned with the opening. The apparatus includes a syringe sensor adapted for engagement by the syringe when loaded into the pressure jacket. The housing may have an engagement tab adapted to engage an engagement recess in the pressure jacket to removably engage the pressure jacket with the housing. The apparatus may have one or more light sources associated with the housing for illuminating the syringe received in the pressure jacket.
54 Citations
29 Claims
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1. A fluid injection apparatus for use with a syringe, comprising:
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an injector comprising an injector housing defining an opening for a drive piston extendable from the injector housing for imparting motive forces to a syringe plunger disposed within the syringe; a pressure jacket associated with the injector for securing the syringe during an injection procedure, the pressure jacket having a distal end defining a syringe receiving opening for receiving the syringe and a proximal end associated with the injector housing and generally aligned with the opening; and a syringe sensor comprising a tapered actuating member having two ends, a flat end and an elongated end, and an electrical switch, whereby the flat end comes into contact with the syringe thereby causing the elongated end to contact the electrical switch and generate a signal when the syringe is inserted into the pressure jacket. - View Dependent Claims (2, 5, 8, 9, 10, 11, 12, 13, 14, 15)
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- 3. The fluid injection apparatus of claim wherein the at least one light source is contained within a light source housing associated with the injector housing.
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6. A fluid injector apparatus for use with a syringe, comprising:
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an injector comprising an injector housing defining an opening for a drive piston extendable from the injector housing for imparting motive forces to a syringe plunger disposed within the syringe; a pressure jacket associated with the injector for securing the syringe during an injection procedure, the pressure jacket having a distal end defining a syringe receiving opening for receiving the syringe and a proximal end associated with the injector housing and generally aligned with the opening; a syringe sensor adapted to be engaged by the syringe when the syringe is loaded into the pressure jacket, the syringe sensor adapted to generate a signal indicating the presence of the syringe in the pressure jacket; and at least two light sources associated with the injector housing and positioned to illuminate the syringe received in the pressure jacket, wherein the at least two light sources are opposing light sources disposed substantially at opposite sides of the pressure jacket, and wherein the opposing light sources are contained within respective light source housings associated with the injector housing. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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7. A fluid injector apparatus for use with a syringe, comprising:
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an injector comprising an injector housing defining an opening for a drive piston extendable from the injector housing for imparting motive forces to a syringe plunger disposed within the syringe; a pressure jacket associated with the injector for securing the syringe during an injection procedure, the pressure jacket having a distal end defining a syringe receiving opening for receiving the syringe and a proximal end associated with the injector housing and generally aligned with the opening; a syringe sensor adapted to be engaged by the syringe when the syringe is loaded into the pressure jacket, the syringe sensor adapted to generate a signal indicating the presence of the syringe in the pressure jacket; and at least two light sources associated with the injector housing and positioned to illuminate the syringe received in the pressure jacket, wherein the at least two light sources are opposing light sources disposed substantially at opposite sides of the pressure jacket, and wherein the opposing light sources each includes at least one light emitting diode disposed within respective light source housings. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification